How To Disable Auto Stop Start On 2021 Acura Tlx: A Complete Guide To Disabling The Auto Stop Start Feature
The 2021 Acura TLX comes equipped with an automatic start-stop system designed to improve fuel efficiency by shutting off the engine when the vehicle is stationary. Many drivers find this feature intrusive, experiencing delays in acceleration or unwanted engine noise at intersections. This article provides a detailed, step-by-step guide on how to disable the auto stop start functionality permanently using the steering wheel controls, along with important information on the system's limitations and the reasons Acura implements it.
Auto start-stop technology, while effective in reducing idle emissions, is not favored by all consumers. If you prefer a more conventional driving experience without the engine cutting out unexpectedly, the 2021 TLX provides a straightforward method to turn the function off. By following specific procedures regarding the engine's operating conditions, you can ensure the system stays disabled for your desired driving sessions.
Understanding The Auto Stop Start System
The automatic engine start-stop system is a standard feature in the 2021 Acura TLX that activates when the vehicle comes to a complete stop, such as at a red light or in heavy traffic. Its primary purpose is to reduce fuel consumption and lower greenhouse gas emissions by preventing the engine from idling unnecessarily. The system is designed to be transparent and should engage only when specific conditions are met, including optimal engine temperature and sufficient battery charge.
When the feature is active, drivers will notice the engine shutting off as soon as the brake is pressed and the vehicle stops. The Acura insignia on the dashboard will typically flash to indicate the system is engaged. The goal is seamless operation, with the engine restarting instantly when the driver moves their foot off the brake or presses the accelerator. However, the immediacy of this restart can sometimes lag, leading to frustration.
Why Drivers Choose To Disable It
While the environmental benefits are clear, the practical driving experience is subjective. Some drivers find the transition between off and on to be jarring or disruptive to the driving flow. Others may prefer the engine to remain running to maintain consistent climate control without the system cycling on and off frequently.
Here are common reasons why owners opt to disable the feature:
- Driving Experience: The sensation of the engine stopping and starting can be unsettling and feels unnatural to some drivers.
- Climate Control: In very hot or cold weather, keeping the engine running ensures the air conditioning or heating remains at a constant level without interruption.
- Severe Conditions: In stop-and-go traffic where the system engages and disengages constantly, the interruption becomes excessive and annoying.
Preparation Before Disabling
Before attempting to turn off the auto stop start, it is important to ensure the vehicle is in the correct state to accept the command. The system is intelligent and will prevent deactivation if it detects conditions are not safe or optimal for the driver to do so.
For example, the engine must be running for the system to be toggled. If the car is off, you cannot disable the feature for the next drive cycle. Additionally, the system performs a self-check periodically; if it determines the battery is low or the engine temperature is not ideal, it may keep the feature active or prevent you from turning it off until conditions improve.
Step-By-Step Disabling Process
Disabling the auto start stop on the 2021 Acura TLX is a simple process that requires driver interaction with the vehicle's infotainment system and steering wheel buttons. The steps are designed to be intuitive and take effect immediately upon confirmation.
Follow these steps precisely to turn the function off:
- Start the Engine: Ensure the vehicle is on. You can do this by pressing the engine start/stop button while your foot is on the brake pedal.
- Locate the INFO Button: Look at the left side of the steering wheel. You will find a button labeled "INFO" surrounded by other steering wheel controls.
- Enter the Settings Menu: Press the "INFO" button repeatedly until the display shows the "Vehicle Settings" or "Driver Settings" screen. Use the toggle switch on the steering wheel to scroll through the menu options if necessary.
- Find Auto Start-Stop: Scroll through the list of settings until you see the option labeled "Auto Start-Stop" or "Start/Stop System."
- Toggle the Setting: Press the toggle switch in the center of the steering wheel (or the "OK" button) to select the option. Change the setting from "On" to "Off."
- Confirm the Change: A confirmation message will usually appear on the instrument cluster display, indicating that the auto start-stop system is now disabled.
Important Considerations And Limitations
It is crucial to understand that the disablement is not always permanent across all trims and model years. While the 2021 TLX allows for easy manual disabling, some configurations or software versions might require a visit to the Acura dealer to change the setting permanently. Furthermore, the system is designed to reset to its default "On" state under specific circumstances.
Acura notes that the auto start-stop feature will reactivate after certain conditions are met, even if you have turned it off. These conditions typically include extreme hot or cold weather where the HVAC system demands maximum engine power to maintain cabin temperature, or if the battery level drops below a safe threshold required to restart the engine. The system prioritizes vehicle functionality and passenger comfort over driver preference in these specific scenarios.
The Manufacturer's Stance
Acura includes this technology as part of its broader strategy to meet fuel efficiency standards and reduce the environmental impact of its vehicles. The system is calibrated to ensure that the engine only shuts off when it is safe to do so, preventing any situation where the restart process might interfere with safety systems or driver control.
According to an Acura spokesperson, "The system is designed to be intelligent and unobtrusive, intervening only when the thermal and battery conditions allow for a seamless transition. Our goal is to provide the fuel savings benefits to the customer without compromising the drivability or safety of the vehicle." This highlights the engineering trade-off between environmental efficiency and the driving purist experience.
